Home / 5,411.07-8,117.19-1,515.51

Finding the Fourth Proportional to 5,411.07, 8,117.19 and 1,515.51

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Solution

The fourth proportional to 5,411.07, 8,117.19 and 1,515.51 is: 2,273.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.07 : 8,117.19 = 1,515.51 : x
  2. Step 2: Convert to fraction form
    5,411.07/8,117.19 = 1,515.51/x
  3. Step 3: Cross multiply
    5,411.07x = 8,117.19 × 1,515.51
  4. Step 4: Simplify right side
    5,411.07x = 12,301,682.62
  5. Step 5: Solve for x
    x = 12,301,682.62/5,411.07
  6. Step 6: Final answer
    x = 2,273.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.